June weather forecastSisters, OR
June
Weather in June
June projects a firm stride towards summer in Sisters, Oregon. An upward swing in temperature continues, recording a scorching high of 67.5°F (19.7°C). An overture of summer's arrival, this time spell transmits more sunlit hours. Rainfall, although not absent, certainly draws back. The blustering winter winds slowly discharge, replaced by warmer and gentler breezes. With receded humidity levels and an abundant supply of sunshine hours, June stands out as a warm and inviting month.Temperature
June's onset witnesses a minor shift in the average high-temperature, moving from a mild 60.1°F (15.6°C) in May to a comfortable 67.5°F (19.7°C). Sisters's nighttime average of 44.6°F (7°C) during June reflects a substantial decrease from the daytime temperature.Humidity
In Sisters, the average relative humidity in June is 62%.Rainfall
In June, the rain falls for 11.4 days. Throughout June, 1.1" (28mm) of precipitation is accumulated. Throughout the year, in Sisters, there are 142.1 rainfall days, and 22.87" (581mm) of precipitation is accumulated.Snowfall
In Sisters, Oregon, snow does not fall in June through August.Daylight
The month with the longest days is June, with an average of 15h and 30min of daylight.On the first day of June, sunrise is at 5:24 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:54 pm PDT.
Sunshine
The average sunshine in June is 11.2h.UV index
The average daily maximum UV index in June is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in June leads to these guidelines:
Take precautions - Protection against sunburn is recommended. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Sisters, OR
- Average high temperature in June: 67.5°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in June: 44.6°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in June
Sisters, OR
- Average pressure in June: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in June
Sisters, OR
- Average wind speed in June: 5.5mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in June
Sisters, OR
- Average humidity in June: 62%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in June
Sisters, OR
- Average rainfall in June: 1.1"
The wettest month (with the highest rainfall) is January (3.31").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in June
Sisters, OR
- Average rainfall days in June: 11.4 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is July (5 days).
Average snowfall in June
Sisters, OR
- Average snowfall in June: 0"
The month with the highest snowfall is February (13.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in June
Sisters, OR
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Sisters, OR
- Average daylight in June: 15h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in June: 11h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in June
Sisters, OR
- Average sunshine days in June: 15.8 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in June
Sisters, OR
- Average UV index in June: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in June
Sisters, OR
- Average cloud cover in June: 26
The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in June
Sisters, OR
- Average visibility in June: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).





